JP2000243064A - Editing recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an editing recorder which is capable of conducting an efficient editing operation even at high speed. SOLUTION: The recorder is provided with a system control means 109, which outputs operating mode signals 111 and editing point information 112, a reproduced signal processing means 103, which outputs reproduced signals 113, a reproduced data accumulating means 106, which stores the signals 113 and outputs reproduced data 116, a reproduced data comparison means 105, which compares the signals 113 with the data 116 and outputs a synchronization detection signal 114 if the signals 113 coincides with the data 116, a recording data accumulating means 107, which outputs recorded data 117, a data controlling means 108, which outputs a storage control signal 115 and outputs a switching control signal 118 if the signal 114 is outputted, a switching means 110, which outputs one of the data 116 and 117, and a recorded signal processing means 104 which processes the outputted data 116 and 117 in accordance with the signals 111.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an editing and recording apparatus used for non-linear editing of video information.
The present invention relates to an edit recording device capable of recording and reproducing at N times speed.

[0002]

2. Description of the Related Art Conventionally, an editing and recording apparatus operates at a normal speed (1).
It is well known that video information is edited at (double speed), and generally has a configuration as shown in FIG. That is, the editing / recording apparatus according to the related art includes a reproduction head 701 and a recording head 702, a reproduction signal processing circuit 703, a recording signal processing circuit 704, a recording data storage circuit 705, and a system control circuit 706. The system control circuit 706 outputs an operation mode signal 707 for controlling operation modes of reproduction and recording. Note that the recording data storage circuit 705 stores video data as recording data.

In the reproduction signal processing circuit 703, the signal output from the reproduction head 701 is subjected to reproduction processing in accordance with the operation mode signal 707 of the reproduction mode. 70
8 is output. The system control circuit 706 detects a position to be recorded from the reproduction data 708, outputs a recording control signal 709 for controlling the recording data 710 output from the recording data accumulation circuit 705, and records the operation mode signal 707. The mode is changed. Further, the recording signal processing circuit 704 performs signal processing on the recording data 710 output from the recording data storage circuit 705 in accordance with the operation mode signal 707 changed to the recording mode. It is to be output.

[0004]

In the conventional editing and recording apparatus, the recording start timing and the recording data 71 stored in the recording data storage circuit 705 are different.
Since it is difficult to match the output timing of 0, the output timing of the reproduction data 708, that is, when the reproduction speed changes, it is necessary to adjust the recording start timing and the output timing of the recording data 710 again. . Also, recently, in order to meet the demand for more efficient editing work and a shorter editing time, an editing and recording apparatus capable of recording and reproducing at N times speed has been provided. If the playback speed changes during editing after that, the editing timing must be adjusted by each device each time, which causes inconvenience in terms of editing work efficiency and editing accuracy.

The present invention has been made in view of such inconveniences, and has a configuration in which, even when editing is performed at a speed higher than a normal speed, it is possible to easily realize an efficient editing operation and an improved editing accuracy. It aims to provide an editing recording device.

[0006]

According to the present invention, there is provided an editing / recording apparatus which temporarily stores a reproduction signal before an editing point when editing point information is clarified, and immediately before recording data in which reproduction data is to be recorded. The recording is started when the reproduction signal being reproduced and the reproduction data are synchronized, and the reproduction data and the recording data are switched when the editing point is detected. It is characterized by having a configuration. With this configuration, the reproduction data is added to the recording data, and recording starts when the reproduction data and the reproduction signal are synchronized. Therefore, it is necessary to adjust the editing timing even in high-speed editing. And editing work with good editing accuracy can be easily realized.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An editing / recording apparatus according to the present invention is capable of recording / reproducing at N times speed, and has a system control means for outputting an operation mode signal for controlling a reproduction / recording operation mode and editing point information. Reproduction signal processing means for executing a signal processing according to an operation mode signal to output a reproduction signal, and reproduction data storage means for storing the reproduction signal based on the synchronization detection signal and the storage control signal and outputting the reproduction data And a reproduction signal output from the reproduction signal processing means and reproduction data output from the reproduction data storage means, and when they match, reproduction data comparison means for outputting a synchronization detection signal, and output of the recording data. A data control means for outputting a storage control signal based on edit point information and outputting a switching control signal when a synchronization detection signal is output. Means for switching between reproduction data and recording data based on a switching control signal, and outputting only one of the data; and reproducing data or recording data output from the switching means in accordance with an operation mode signal. And recording signal processing means for performing signal processing.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an editing and recording apparatus according to the present embodiment, FIG. 2 is a block diagram showing a configuration of a reproduction data comparison circuit, FIG. 3 is a block diagram showing a configuration of a reproduction data storage circuit, FIG. 4 is a block diagram showing the configuration of the data control circuit. FIG. 5 is an operation explanatory diagram for explaining a procedure of an operation for accumulating reproduction data in the editing and recording apparatus.
FIG. 7 is an operation explanatory diagram for describing a recording operation procedure of reproduction data or recording data.

As shown in FIG. 1, the editing and recording apparatus includes a reproducing head 101 and a recording head 102, a reproduced signal processing circuit 103, a recorded signal processing circuit 104, a reproduced data comparison circuit 105, and a reproduced data storage circuit 106. , A recording data storage circuit 107, a data control circuit 108, a system control circuit 109, and a switching circuit 110.
9 outputs an operation mode signal 111 for controlling operation modes of reproduction and recording and edit point information 112. The reproduction signal processing circuit 103 reproduces a signal from the reproduction head 101 in accordance with an operation mode signal 111 of a reproduction mode output from the system control circuit 109, and outputs a reproduction signal 113. The storage circuit 106 includes a synchronization detection signal 114 output from the reproduction data comparison circuit 105 and a data control circuit 108
The reproduction signal output from the reproduction signal processing circuit 103 is stored on the basis of the storage control signal 115 output from the storage device 115, and the reproduction data 116 is output.

The reproduction data comparison circuit 105 includes a reproduction signal 113 output from the reproduction signal processing means 103,
Reproduction data 1 output from reproduction data storage means 106
16 are compared with each other, and when they coincide with each other, a synchronization detection signal 114 is output. The recording data storage circuit 107 stores recording data 117 such as video data to be recorded in advance. . Further, the data control circuit 108 includes a system control circuit 109
And outputs a storage control signal 115 based on the edit point information 112 output from the control unit 105. When the synchronization detection signal 114 is output from the reproduction data comparison circuit 105, the switching control signal 11
8 is to be output.

Further, the switching circuit 110 includes a reproduction data 116 output from the reproduction data storage circuit 106.
And the recording data 117 output from the recording data storage circuit 107 based on a switching control signal 118 output from the data control circuit 108. One of the switched data is output from the switching circuit 110. That is, only one of the reproduction data 116 and the recording data 117 is output. Then, in the recording signal processing means 104, one of the reproduction data 116 and the recording data 117 output from the switching circuit 110 is subjected to signal processing according to the operation mode signal 111 of the recording mode, and is processed. The output signal is output to the recording head 102.

By the way, the reproduced data comparison circuit 105 at this time has terminals 201 and 20 as shown in FIG.
2, 205, the comparison circuit 203, and the data detection circuit 20.
The reproduction signal 113 from the reproduction signal processing circuit 103 is input to a terminal 201, and the reproduction data 116 from the reproduction data storage circuit 106 is provided.
Are input to the terminal 202. Then, the terminals 201,
Each of the reproduction signal 113 and the reproduction data 116 input through 202 is compared with each other by the comparison circuit 203, and the reproduction signal 113 and the reproduction data 116 are compared.
The synchronization detection signal 114 is output from the data detection circuit 204 which has detected that the data and the data match, via a terminal 205.

Further, the reproduction data storage circuit 106 has
As shown by the terminals 301, 302 and 306, 307
, A storage circuit 303, a storage control circuit 304, and a reproduction control circuit 305. A reproduction signal 113 from the reproduction signal processing circuit 103 is input to a terminal 301, and a data control While the storage control signal 115 from the circuit 108 is input, the synchronization detection signal 114 output from the reproduction data comparison circuit 105 is input to the terminal 307. The storage circuit 303 stores the reproduction signal 113 input through the terminal 301, while the storage control circuit 304 starts storing the reproduction signal 113 in the storage circuit 303 based on the storage control signal 115 input through the terminal 306. The reproduction control circuit 305 controls the reproduction of the reproduction data 116 stored in the storage circuit 303 in response to the synchronization detection signal 114 input from the terminal 307, and then outputs the reproduction data from the terminal 302. Is done.

Further, as shown in FIG. 4, the data control circuit 108 includes terminals 401, 405, 406, and 407,
An edit point detection circuit 402 and a data switching circuit 403 are provided. The terminal 401 receives the edit point information 112 from the system control circuit 109, and the terminal 405 receives a reproduction data comparison circuit. 10
5 is input. And
The edit point detection circuit 402 outputs a storage control signal 115 for controlling storage start and storage end of the reproduction signal 113 based on the edit point information 112 input from the terminal 401, and when an edit point is detected. Edit point detection signal 40
In the data switching circuit 403, the synchronization detection signal 114 input from the terminal 405 and the edit point detection signal 404 output from the edit point detection circuit 402
Is output from the terminal 407 based on the switching control signal 118.

Next, a procedure of an operation of accumulating reproduction data executed by the editing and recording apparatus according to the present embodiment will be described with reference to FIG. 5A shows the reproduction signal 113, FIG. 5B shows the storage control signal 115, and FIG. 5C shows the reproduction data 116, and the reproduction signal 113 is A, B,
.., K are output in this order. In FIG. 5, the position of K of the reproduction signal 113 is an editing point.

That is, in this editing and recording apparatus, the reproduction signal processing circuit 103 responds to the operation mode signal 111 of the reproduction mode output from the system control circuit 109.
Thus, the reproduction signal 113 is processed and output up to the editing point. The edit point information 112 is output from the system control circuit 109, and the edit point detection circuit 40 of the data control circuit 108 is output.
2 and n frames before the edit point (in FIG. 5A, n =
10, that is, A to J) is detected.
As shown in (b), when the B frame of the reproduction signal 113 is reproduced, the storage control signal 115 is changed from the Low level to the High level, and the storage control signal 115 is changed to the High level one frame before the editing point. Low from level
A change to a level is performed.

In the reproduction data storage circuit 106, a recording command is generated by the storage circuit 303 when the storage control circuit 304 detects that the storage control signal 115 is at the high level. 11
3 is started while the storage control signal 11
When 5 changes to the Low level, the operation of storing the reproduction signal 113 is terminated. Therefore, in the storage circuit 303 of the reproduction data storage circuit 106, as shown in FIG.
6 are stored. Here, it is assumed that the data amount n stored in the reproduction data storage circuit 106 is n = 10. However, if n is variable, it is possible to perform high-accuracy editing even at higher speed.

Next, a data recording operation procedure performed in the editing and recording apparatus will be described with reference to FIG.
In FIG. 6, (a) shows the reproduced signal 113,
(B) is the reproduction data 116 and (c) is the synchronization detection signal 11.
4, (d) shows the recording data 117, (e) shows the switching control signal 118, and (f) shows the switching circuit 110.
2 shows data input to the recording signal processing circuit 104. Here, it is assumed that data input to the recording signal processing circuit 104 is reproduction data.

First, when an editing operation is performed, the reproduction signal 113 and the reproduction data 116 are compared with the reproduction data comparison circuit 1.
05 by the comparison circuit 203,
A synchronization detection signal 114 as shown in FIG. 6C is output from the data detection circuit 204 which detects that the reproduction signal 113 and the reproduction data 116 match. Then, in the reproduction control circuit 305 of the reproduction data storage circuit 106, FIG.
As shown in (b), the reproduction of the stored reproduction data 116 is started based on the synchronization detection signal 114.

On the other hand, from the recording data storage circuit 107,
When the recording data 117 as shown in FIG. 6D, that is, the data K1 of the continuous recording start point is output, and the editing point is detected by the editing point detecting circuit 402 of the data control circuit 108, As shown in FIG. 6E, the switching control signal 118 is changed from a low level to a high level. Therefore, the switching circuit 1 to which the high-level switching control signal 118 has been input.
10, the reproduction data 116 and the recording data 117 are switched according to the switching control signal 118.
4 is output as a signal shown in FIG. 6F, that is, here, the reproduced data is data to be recorded. That is, according to such a procedure, the recording is started when the reproduction data 116 is output from the reproduction data storage circuit 106, so that there is no need to adjust the editing timing, and the editing operation with high editing accuracy can be performed. It will be.

[0022]

As described above, according to the editing and recording apparatus of the present invention, reproduction data is added to recording data,
Since recording is started when the reproduction data and the reproduction signal are synchronized, there is no need to adjust the editing timing even if the reproduction speed changes. As a result, there is no need to adjust the editing timing even in high-speed editing, and an effect is obtained that an editing operation with good editing accuracy can be easily realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an editing and recording device according to the present embodiment.

FIG. 2 is a block diagram illustrating a configuration of a reproduction data comparison circuit.

FIG. 3 is a block diagram illustrating a configuration of a reproduction data storage circuit.

FIG. 4 is a block diagram illustrating a configuration of a data control circuit.

FIG. 5 is an operation explanatory diagram for describing a procedure of an operation of accumulating reproduction data in the editing and recording apparatus.

FIG. 6 is an operation explanatory diagram for describing a recording operation procedure of stored data.

FIG. 7 is a block diagram showing a configuration of an editing and recording device according to a conventional mode.

[Explanation of symbols]

 103 reproduction signal processing means 104 recording signal processing means 105 reproduction data comparison means 106 reproduction data storage means 107 recording data storage means 108 data control means 109 system control means 110 switching means 111 operation mode signal 112 editing point information 113 reproduction signal 114 synchronization detection Signal 115 Storage control signal 116 Reproduction data 117 Recording data 118 Switching control signal

Claims (1)

[Claims] 1. An editing / recording apparatus capable of recording / reproducing at N times speed, a system control means for outputting an operation mode signal for controlling an operation mode of reproduction and recording and edit point information, and a system control means in response to the operation mode signal. Playback signal processing means for executing a read signal processing and outputting a playback signal; playback data storage means for storing the playback signal based on the synchronization detection signal and the storage control signal and outputting playback data; and playback signal processing means. A playback data comparison unit that compares a playback signal to be output with playback data output from the playback data storage unit and outputs a synchronization detection signal when they match; a recording data storage unit that outputs recording data; Data control means for outputting a storage control signal based on edit point information and outputting a switching control signal when a synchronization detection signal is output; Switching means for switching between the reproduction data and the recording data based on the control signal and outputting only one of the data, and processing the reproduction data or the recording data output from the switching means in accordance with the operation mode signal An editing and recording apparatus comprising: a recording signal processing unit.